https://www.theregister.co.uk/2019/02/28/a_i_driver_teaching_self_driving_cars_human/

Autonomous vehicles have been given the green light – according to HM Government – which confidently expects they'll be pounding Britain's potholed highways by 2021.

But before AVs take off, they must be extensively tested – and therein lies the rub: those who are building smart-car systems require highly realistic simulations and testing conditions to ensure their creations are safe. That demands a really solid understanding of human road behaviour – with all its foibles, unpredictability and aggression included. And, frankly, we just aren't there yet.